import re

print ('Domains Counter')

pattern = "[\w-]*\.\w{2,}$"
domains ={}
file = open("malware.txt", "r")
for line in file:
    result = re.search(pattern, line.strip())
    if (result):   
        domain = result.group()
        if (domain in domains):
            domains[domain] = domains[domain] + 1
        else:
            domains[domain] = 1
            
file.close()

domains_sorted = sorted(domains.items(), key=lambda y:y[1])

print (domains_sorted)